<template>
  <div class="login-container">
    <!-- 导航栏 -->
    <!-- 导航栏 -->
<van-nav-bar class="page-nav-bar" title="登录">
  <template #left>
    <!-- 后退上一页:  $router.back() 或 $router.go(-1) -->
    <van-icon name="cross" @click="$router.back()" />
  </template>
</van-nav-bar>
<!-- /导航栏 -->
    <!-- 导航栏 -->
    <!-- 登录表单 -->
    <van-form @submit="onSubmit" ref="loginForm">
      <van-field
        name="mobile"
        placeholder="请输入手机号"
        v-model="user.mobile"
        left-icon="smile-o"
        :rules="userFormRules.mobile"
        maxlength="11"
        type="number"
      >
        <!--【增加图标】-->
        <template #left-icon>
          <i class="toutiao toutiao-shouji"></i>
        </template>
      </van-field>
      <van-field
        name="code"
        placeholder="请输入验证码"
        v-model="user.code"
        left-icon="smile-o"
        :rules="userFormRules.code"
        maxlength="6"
        type="number"
      >
        <template #left-icon>
          <i class="toutiao toutiao-yanzhengma"></i>
        </template>
        <!--【增加发送按钮】-->
        <template #button>
          <!--这里注意，要加上native-type,否则也可以实现表单提交-->
          <!-- 倒计时 -->
          <van-count-down
            :time="1000 * 60"
            format="ss 秒"
            v-if="isCountDownShow"
            @finish="isCountDownShow = false"
          />
          <!-- 倒计时 -->
          <!-- 验证码 -->
          <van-button
            v-else
            class="send-sms-btn"
            round
            size="small"
            native-type="button"
            type="default"
            @click="onSendSms"
          >
            发送验证码
          </van-button>
          <!-- 验证码 -->
        </template>
      </van-field>
      <div class="login-btn-wrap">
        <!--其实van-button按钮如果包裹在van-form里面默认类型就是native-type，这里不加也可以-->
        <van-button class="login-btn" block type="info" native-type="submit"
          >登录</van-button
        >
      </div>
    </van-form>
    <!-- 登录表单 -->
  </div>
</template>

<script>
import { login,SendSms } from "@/api/user";
export default {
  name: "LoginPage",
  components: {},
  props: {},
  data() {
    return {
      user: {
        code: "",
        mobile: ""
      },
      userFormRules: {
        mobile: [
          {
            required: true,
            message: "手机号不能为空"
          },
          {
            pattern: /^1[3|5|7|8]\d{9}$/,
            message: "手机格式错误"
          }
        ],
        code: [
          {
            required: true,
            message: "验证码不能为空"
          },
          {
            pattern: /^\d{6}$/,
            message: "验证码式错误"
          }
        ]
      },
      isCountDownShow: false //倒计时
    };
  },
  computed: {},
  watch: {},
  created() {},
  mounted() {},
  methods: {
    async onSubmit() {
      this.$toast.loading({
        message: "登录中...",
        forbidClick: true,
        duration: 0
      });
      const user = this.user;
      try {
        const {data} = await login(user);
        this.$store.commit('setUser',data.data)
        this.$toast.success("登录成功");
         this.$router.back()
        // console.log("登录成功", res);
      } catch (err) {
        if (err.response.status === 400) {
          this.$toast.fail("手机号码或者验证码错误");
        } else {
          this.$toast.fail("登录失败");
        }
      }
    },
    async onSendSms() {
      try {
        await this.$refs.loginForm.validate("mobile");
      } catch (err) {
        return console.log("验证失败", err);
      }
      this.isCountDownShow = true; //倒计时
      try{
        await SendSms(this.user.mobile)
           this.$toast('发送成功')
      }catch(err){
        this.isCountDownShow = false
        if(err.response.status === 429){
          this.$toast('发送太频繁，请重试')
        }else{
           this.$toast('发送失败，请重试')
        }
      }
    }
  }
};
</script>

<style scoped lang="less">
.login-container {
  .toutiao {
    font-size: 37px;
  }
  .send-sms-btn {
    width: 160px;
    height: 46px;
    line-height: 46px;
    background-color: #ededed;
    font-size: 22px;
    color: #666;
  }
  .login-btn-wrap {
    padding: 53px 33px;
    .login-btn {
      background-color: #6db4fb;
      border: none;
    }
  }
}
</style>
